Roofing



T. C. PROUTY July 5, 1932.

ROOFING 2 Sheets-Sheet 1 Filed June 27. 1927 INVENTOR. T heoelove CPmgZg ATTORNEY.

Patented July 5, 1932 UNITED STATES PATENT OFFICE- r rmonoa a c. noun, or HEBHOBA amen, cnnronma. ASSIGIII'OR 're nmox conroanrrox, L'rn, or rnmur'rm anon, cun'onnm, A conrona'rron or canaoornre Applicationfled June :7, 1927. mm Io. 201,800. I 7

My invention is an improved water-proof roofing and comprises an inter-locki composition shingle that may be used as roofing material or in combination with tile. When used with tile each of the composition shingles has fixed thereto a tile of such form that when the roof surface is covered with the inter-locking shingles the tiles fixed thereto will form the outer exposed, surface. Tile roofs as now constructed are laid over a complete water-proof roof consisting of tarred aper and tar or other similar materials. The provision of the water-proof under-roof beneath the tiles is necessary on account of the fact that water finds its way between the tiles in a heavy down-pour of rain and especially when the wind gets beneath the edges .of the tiles and raises them and drives, the rain intothe spaces between adjoining tiles. Commonly tiles are laid, as in the mission type of tiling, overlap to prevent as far a possible the entrance of water, a measure that was absolutely necessary in former daysfwhen the modern water-proofing materials of which the under-roofs are now constructed were unknown. The overlapping of the tiles and the relatively great thickness of the tiles heretofore necessary to give themsuflicient strength results in a roof of immense weight, and such a roof can be. laid only on a building having a roof structure and supporting structure built at a cost and having 'a degree of strength that are necessary for no other purpose than merely to support a roof of this character. The necessity of making the roofs of modern structures absolutely waterroof and the provision for that purpose 0 a complete water-proof roof beneath the tile makes it a matter of no importance whether the tiles be overlapped in such a way as to minimize as far as possible the entrance ofwater or be laid without extensive or any over-lap. The ultimate reliance .for water exclusion is theunder-lying water-"proof roof, and as the under-lying roof is capable of carrying oif allof the water it is immaterial whether a eater or lessor amount is carried ofi by 1t. Therefore .when tile is used as part of my improved e sole.

'th side and end roofing I prefer to dispense altogether with the overla at the side edges, simpl bringmg the t as together with the sige. edges abutting. At the upper and lower ends the tile may overlap to preserve the usual a pearance of tile roofing or they may simp y abut at the upper and lower edges.

In the drawings:

Figure 1 is a view before the marginal sections of the tar paper or other composition of which it is made are folded over the central flat section.

Figure 2 shows the base unit with the marginal sections folded over the central sec- 1on.

Figure 3 is a view of a base section with a tile attached thereto.

Figure 4 is a view of four .of the base units assembled in inter-locln'ng engagement but without tiles attached thereto.

In Fi 5 I show eight units assembled,

of one of the base units each umt comprising a base unit with a tile attached thereto.

Figure G is a view on a transverse section of the structure shown in Figure 3, the section being parallel to the short sides of the tile 7 and midway between them.

The form of the blanks from which the inter-locking. shingles are made is shownin Figure 1 and consists of a central parallelogram with surrounding marginal sections 2, 3, 4 and 5.. As indicated in Figure 2 the section 4 is folded over the frontor. to of the central section, i. e. over the side of the central section that lies uppermost as represented in the drawings wlnch side lies uppermost when the shingle is in position upon the roof. The section 3 is then folded over the same side of the central section. The line u on which the section 3 is folded forms a ,shghtly acute angle with the line upon which section 4 is folded and a correspondingly obtuse angle with the line upon which sec- 4 of a and fold 5 of b interlocking with foldstructure. Figure 4 shows fourv of these base units assembled in inter-locking engagement as when laid upon a roof structure to which they may be fastened by means of nails at any convenient points. Assuming that the unit 0 is first placed position, the unit d is placed beside unit 0 with the fold 2 of d interlocking with fold 4 of c and fold 3 of d underneath fold 3 of 0. Unit a is then placed above a with the fold 5 of a interlocking with fold 3 of a, after which unit 6 is placed beside a with the fold 3 of b beneath fold 3 of a, fold 2 of b interlocking with fold 3 of d. As so assembled the base units constitute a complete water-proof roof and may be so used. In Figure 3, however, I have shown a tile, 7, fixed to the base. The upper and lower flaps 3 and 5 are made at an oblique angle with the side edges 2 and 4; for otherwise the upper edge of each unit, lying inside of the upper fold 3 of the unit at the left, would be stepped down with respect to that unit by an amount equal to the thickness of the material. The rows of units would not be parallel to the ridge and eaves, but would be inclined thereto.

As above stated the base units may be constructed of paper impregnated with asphalt or tar or of asbestos or other fireproof composition and the tile may be attached securely to the base unit by means of asphalt tar or similar suitable substance. The tiles 7, as shown in Figure 5, are of a width sufficient to cover the roof surface with their side edges abutting without overlap, and are fixed to the base units with the edges of the tile projecting beyond the two edges of the base unit upon which the marginal sections of the base unit are folded under, i. e. away from the tile. The other two edges of the base unit project beyond the edges of the tile thereby leaving the folded marginal sections 3 and 4 exposed for convenient engagement with the adjoining units when the roof is laid. I have shown the tile 7 in Figures 3 and 5 of such length that in assemblage the lower edge of each tile laps over the upper edge of the adjoining tile in the next row below, the yielding structure of the base units permitting the tiles to be disposed in this way. As above stated, however, the tiles may simply abut'at the lower and upper edges as at the sideedges.

The angle between the fold lines of marginal sections 3, 5 and the fold lines of sections 2, 4 is suflicient to permit the units to be laid in rows. perpendicular to their side edges. The amount of angularity will therefore depend on the thickness of the material of which the base units are constructed, as it is the thickness of the material that determines the extent to whichthe upper edge of each unit is out of alinement with the upper edges of the adjoining units.

I claim:

1. A roof comprising a plurality of base units, each of said units having a central flat section and marginal sections folded over said central section, said marginal sections of said units overlapping in'interlocked engagement, and a tile secured to each of said base units.

2. A roof comprising a plurality of base units, each of said units having a central fiat section and marginal sections folded over said central section, said marginal sections of said units overlapping in interlocked engagement, and a tile secured to each of said base units, the tile on each of said base units projecting beyond two of the adjoining edges of the base unit and the other two adjoining edges of said base unit projecting beyond the edges of the tile.

3. A roof comprising a plurality of units, each unit having a central flat section and marginal sections folded over said central section, some of said marginal sections being folded over one side and the others over the other side of said central section, said units being laid edge to edge with their fold- ,ed marginal sections in interlocking engagement, and a tile fixed to each of said units.

4. A roof comprising a plurality of quadrilateral units, each of said units having a central flat section and marginal sections folded over said central section, the marginal sections at opposite sides being reversely folded, said units being laid edge 'to edge with their folded marginal sections in interlocking engagement, and a tile fixed to each of said units.

5. A roof comprising a plurality of base units, each of said units havinga central flat section and marginal sections .folded over said central section, said marginal sections of said units overlapping in interlocked engagement, and a tile secured to each of said base units, the tile on each of said base units projecting beyond two of the adjoining edges of the base unit and the other two adjoining edges of said base unit projecting beyond the edges of the tile, the marginal sections on the edges of said base unit which project beyond said tile being folded over the side of said base unit to which said tile is fixed and the other marginal sections being folded over the terlo'cked, these units extendin a direction parallel to a line at right angles to the side marginal edges of said units.

7. A roofin shingle comprising a central section, marginal sections folded over said central section, said folds being such as to permit interlocking a plurality of shingles, and -a tile secured to the central section.

'8. A roofing shinglecom rising a central section, marginal sections olded over said central section, and a tile secured to the central section, some of the marginal sections on the edges of the central section being folded over on one side thereof, and the other marginal section being folded over the other side thereof.

In testimony whereof, I have subscribed my name. a

- THEODORE c. PROUTY. 

